1.2 Winning the Game 0910

DM

April 12th 2010

Math 7B

Big idea:Negative numbers help us to model many real world situations.

Essential Question #1: How do I put positive and negative numbers in order?

Problem 1.2 Winning the game

Mr Hazan plays MathMania with his class. He divides the class into five teams. At the end of the game, the scores are as follows:

Team A: 200 Team B: -250 Team C: -400 Team D: 350 Team E:-100

A. Order the teams score, from first place through fifth place.

Answer: The teams are listed from first place through fifth place.

1st place: Team D with 350 points

2nd place: Team A with 200 points

3rd place: Team E with -100 points

4th place: Team B with -250 points

5th place: Team C with -400 points

B.

By how many points is the first-place team ahead of the second-place team?

Answer: The first place team is 150 points ahead of the second-place team.

C. By how many points is the first-place team ahead of the third-place team?

Answer: The first-place team is ahead of the third place-team by 450 points.

D.

By how many points is the second-team ahead of the fourth-place team?

Answer: The second- place team is ahead of the fourth-place team by 450 points

E.
By how many points it the third-place team ahead of the fifth-place team?

Answer: The third place team is ahead of the fifth place team by 300 points.

1.2 Follow

1. Copy each pair of numbers below, inserting a < or > to make a true statement.
Answer:
A. 53 > 35

B. -50 < 0

C. -30 < 15

D. -70 > -90

2. Order the numbers below from least to greatest.
Answer:
-25, -7, -4, -3, 0, 1, 2, 5, 12, 15, 25